Security Advisory

2) Improper Certificate Validation

Severity: Medium

CVSSv3:
5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID:
CVE-2020-14154

CWE-ID:
CWE-295 – Improper Certificate Validation

Exploit availability:
No

Description

The vulnerability allows a remote attacker to perform a man-in-the-Middle (MitM) attack.

The vulnerability exists due to improper certificate validation in mutt. The application proceeds with the connection eve if in response to a GnuTLS certificate prompt the user rejects an expired intermediate certificate.

Mitigation

Update the affected packages.

Vulnerable software versions

Opensuse:
15.1

CPE

External links

https://lists.opensuse.org/opensuse-security-announce/2020-06/msg00064.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.





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